Type-writing machine



(No Model.) 2 Sheets-Sheet 1.

G. H. LASAR. TYPE WRITING MACHINE.

No. 415,525. Patented Nov. 19, 1889.

N. PETERS. Phom-uthu m hor, Washington. D. C.

(No Model.) 2 Sheets-Sheet 2. I

G. H. LASAR.

TYPE WRITING MACHINE.

No. 415,525. Patented Nov. 19, 1889.

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'elevation of the same.

' UNITED STATES PATENT OFFICE.

GODFREY II. LASAR, OF ST. LOUIS, MISSOURI.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 415,525, dated November19, 1889. Application filedOctoher 11, 1886. Renewed June 22, 1889.Serial No. 315,143. (No model.)

To all whom it may concern:

Be it known that I, GODFREY H. LASAR, of the city of St. Louis, in theState of Missouri, have invented a certain new and useful Improvement inType WVriting Machines, of which the following is a full, clear, andexact description, reference being had to the accompanying drawings,forming part of this specification, and in which- Figure 1 is a topview, part in section, illustrating my improvement. Fig. 2 is a frontFigs. 3 and 4 are vertical sect-ions thereof on line 3 4, Fig. 2,looking in the direction of the arrows, the two figures showing theparts in different positions. Fig. 5 is a section on line 5 5, Fig. 3,looking in the direction of the arrows. Fig. 6 is a perspective view ofthe outer ends of two of the key-levers of the machine separated. Fig. 7is a perspective View of one of the keys. Fig. 8 is a perspective viewof the link arrangement for shifting the keys, looking from the rearside.

This invention relates to that class of typewriters where the keys areshifted so as to operate the key-levers of either the upper or lowercase letters; and this invention consists in features of noveltyhereinafter fully described, and pointed out in the claims.

Referring to the drawings, A represents the key-levers, and B the keys,of a type-writer, the latter having stems B, which pass through and areheld in sleeves or tubes 0, Supported in a fixed key-board or plate D onthe upper end of side pieces D. The sleeves or tubes have slots 0, toreceive lugs or cars B on collars 13 secured to or formed upon the stemsof the keys. The lugs fitting in the slots guide the keys and keep themfrom turning; but they do not fill the slots entirely, so as to permitthe keys to be moved or shifted in vertical planes out of a verticalposition in either direction, (see Figs. 3 and 4,) so that they may bemade to operate either the upper or lower case letter key-levers, asdesired. The openings (J in the bottoms of the tubes or sleeves are alsoelongated in the direction of the movement of the stems, so as to penmit of the movement of the latter.

There are springs K, located between the collars ordisks B and thebottoms of the sleeves, for the purpose of holding the keys in theirelevated position except when depressed to operate the key-levers. Thetops of the sleeves consist of hinged buttons N, (see Fig. 1,) havingslots N, to receive the stems. By turning the buttons back the keys maybe removed.

Gr representsa movable plate having a perforation to receive the lowerend of each of the stems B. This plate is supported by links H, hingedthereto at H and to the sides D of the plate D at H The plate is thusallowed to be swung freely in or out to bring the lower ends of thestems of the keys over either the upper or lower case key-levers, andthe plate is thus moved in one direction by depressing a key I orfinger-piece having stems 1, working in sleeves 1 supported. on lugs 1projecting from the top plate D. The key I is connected by links or arms.I to cranks L on a rook-shaft L, journaled in bearings L secured tolugs L on plate D. The cranks of the shaft are connected by other linksor arms J to the plate G. It will thus be seen that as the key orfinger-piecel is depressed and the rock-shaft turned the plate will bemoved and the keys shifted in one direction at bottom, and thisdirection is from that shown in Fig. 3 to that shown in Fig. 4.. Theplate and keys are moved in the other direction at bottom, when thepressure is removed from the key or finger-piece I, by a spring M,surrounding the shaft and secured by one end to the shaft at M and bythe other end to a bearing L on the plate D. This spring holds the keysin their normal position, (see Fig. 3,) where they operate one set ofkey-levers, (say the lower-case,) and by depressing the key orfinger-piece I the keys are brought into position to operate theupper-case key-levers, as stated.

The keys are preferably arranged in diagonal rows or series, so thattheir lower ends are brought in line with their respective pair ofkey-levers, and in order that each key need not be moved from itsvertical plane over its key-levers (and yet operate both) I secureblocks or pieces 0 to each pair of key-levers, and upon these blocks thelower ends of the keys impinge when the keys are operated. Each block islong enough to extend from the key-lever to which it is secured over theother key-lever of that pair, (see Figs. 2 and 5,) and in order thatonly the key-lever of the block secured to it shall be operated When akey is depressed (and not also the other key-lever of that pair) theother key-lever of that pair is notched out at P beneath the block thatis secured to the other key-lever of the pair, and thus only onekey-lever is operated at a time, and yet'provision made for. twokey-levers to be operated by a single key.

I claim as my invention- 1. In a type-Writer, in combination with thekey-levers, the keys swinging in vertical planes, substantially as setforth.

2. In a type-Writer, in combination With the key-levers, the keysswinging in vertical planes, a fixed plate, perforated plate throughwhich the stems of the keys pass, and mechanism, substantially asdescribed, for moving the perforated plate.

3. In a type-Writer, in combination with the key-levers, the keysswinging in vertical planes, perforated plate through Which the stems ofthe keys pass, hinged links supporting the plate, and mechanism,substantially as set forth, for moving the latter.

4. In a type-Writer, in combination with the key-levers, the keysswinging in vertical planes, movable perforated plate, and mechanism formoving the plate to shift the keylevers, consisting of a rock-shaftprovided With a crank, key, links connecting the key to the crank on therock-shaft, links connecting the crank to the plate, and springs formoving the parts in one direction, substantially as set forth.

5. In a type- Writer, in combination with the key-levers, the fixedplate, sleeves or tubes secured to the plate, keys moving in verticalplanes, having stems passing through the sleeves, springs located in thesleeves and acting to support the keys, and mechanism, sub stantially asdescribed, for shifting the keys, substantially as and for the purposeset forth.

6. In a type-Writer, in combination with the key-levers, the fixedplate, slotted sleeves secured to the plate, keys having stems passin gthrough the sleeves, collar secured to the' the keys provided withstems, the notched 6o key-levers provided With blocks or pieces,

against Which the stems of the keys strike,

and means, substantially as described, for shifting the keys in avertical plane, for the purpose set forth.

GODFREY H. LASAR. Witnesses:

SAML. KNIGHT, GEO. H. KNIGHT.

